CVE-2021-34997: Commvault CommCell AppStudioUploadHandler Arbitrary File Upload Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Commvault CommCell 11.22.22. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the AppStudioUploadHandler class. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this vulnerability to execute code in the context of NETWORK SERVICE. Was ZDI-CAN-13894.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Commvault CommCell. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the AppStudioUploadHandler class. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this vulnerability to execute code in the context of NETWORK SERVICE.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34997?
CVE-2021-34997 has a high severity rating due to its potential for remote code execution.
How do I fix CVE-2021-34997?
To fix CVE-2021-34997, update to the latest version of Commvault CommCell that addresses this vulnerability.
Who is affected by CVE-2021-34997?
CVE-2021-34997 affects installations of Commvault CommCell version 11.22.22.
What type of vulnerability is CVE-2021-34997?
CVE-2021-34997 is a remote code execution vulnerability.
Is authentication required to exploit CVE-2021-34997?
Yes, authentication is required to exploit CVE-2021-34997, but it can be bypassed.